Martín Olleta was a Chono chieftain who was an important broker between Spanish authorities in Chiloé Archipelago and indigenous people of the fjords and channels of Patagonia.
[1] Olleta led a party of indigenous Chono that visited Captain Cheap's stranded group in Wager Island, Guayaneco Archipelago.
This happened fifteen days after a group of British sailors returned to Wager Island after failing to round Taitao Peninsula with an improvised barge.
[1] After some negotiation, the Chono agreed to guide Cheap's group to a small Spanish settlement up the coast, using an overland route to avoid the peninsula.
[3][4] Before handing over the English to Spanish authorities, Martín Olleta's party stopped somewhere south of Chiloé Island to hide all iron objects, likely to avoid having them confiscated.